西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (5): 118-120.DOI: 10.3863/j.issn.1000-2634.2008.05.027

• 油气化学工程与化工 • Previous Articles     Next Articles

THE PROPERTIES OF A MULTIFUCTIONAL CROSSLINKING AGENT IN THE POLYMER FRACTURING FLUIDS

WANG Xu1 YAN Fei1 ZHAO Wen-na2 HUANG Qiu-wei3 JIANG Er-liang1   

  1. 1.School of Materials Science and Engineering,Southwest petroleum University,Chengdu Sichuan 610500,China; 2.Engineering and Technological Institute of Northwest Oilfield Branch,SINOPEC,Urumqi Xinjiang 830011,China; 3.Well Testing Company of Petrochina Xinjiang Oilfield Company,Karamay Xinjiang 834000,China.
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-20 Published:2008-10-20

Abstract: For crosslinking agents,metallic compounds in synthesized polymer fracturing fluids result in the secondary formation damage and are not compatible with other additives,a organic compound(YJ) with the function of clay stabilizer and crosslinking agent and its gel microstructure with a polymer thickener (A-1) are studied in this paper.It is shown that the gel is formed under the condition of pH7 and the matching mass concentration{ρ (A-1) :ρ (YJ) = 1:1}with the maximum viscosity and can be broken by ordinary breakers in 2h at 25℃,and that the viscosity reduces with the temperature going up but is maximum at 30℃,and that the antiswelling rate of 1%YJ is up to 70% in 2h and close to 54% in 16h,and that the gel system has a network structure of layer in space with the SEM.

Key words: fracturing fluids, crosslinking agent, clay stabilizer, thickener, property

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